Drop support for game specific exclusion lists

While the feature has been available, there hasn't been need to diverge
from the "global" exclusion list. It wouldn't make much sense either,
as the packages themselves are global, and the visibility in manager
are handled by game specific package listings.

docs/Adding a game.md

@@ -37,8 +37,6 @@
     - Required for Unreal games relying on unreal-shimloader.
   - **TsUrl**
     - The Thunderstore API endpoint for the listing.
-  - **ExclusionsUrl**
-    - The URL used to load package exclusions. Generally just kept the same. No real reason to change until it becomes a large file as extra overhead to maintain.
   - **Platforms**
     - Array of `StorePlatformMetadata` for the different supported storefronts. Identifier is not required, however is expected for Steam and EGS (more potentially in future).
   - **GameImage**

src/model/game/Game.ts

@@ -14,7 +14,6 @@ export default class Game {
     private readonly _exeName: string[];
     private readonly _dataFolderName: string;
     private readonly _thunderstoreUrl: string;
-    private readonly _exclusionsUrl: string;
     private readonly _storePlatformMetadata: StorePlatformMetadata[];
     private readonly _gameImage: string;
     private readonly _displayMode: GameSelectionDisplayMode;
@@ -27,7 +26,7 @@ export default class Game {
 
     constructor(displayName: string, internalFolderName: GAME_NAME, settingsIdentifier: string,
                 steamFolderName: string, exeName: string[], dataFolderName: string,
-                tsUrl: string, exclusionsUrl: string, platforms: StorePlatformMetadata[], gameImage: string,
+                tsUrl: string, platforms: StorePlatformMetadata[], gameImage: string,
                 displayMode: GameSelectionDisplayMode, instanceType: GameInstanceType, packageLoader: PackageLoader, additionalSearchStrings?: string[]) {
 
         this._displayName = displayName;
@@ -37,7 +36,6 @@ export default class Game {
         this._exeName = exeName;
         this._dataFolderName = dataFolderName;
         this._thunderstoreUrl = tsUrl;
-        this._exclusionsUrl = exclusionsUrl;
         this._storePlatformMetadata = platforms;
         this._activePlatform = platforms[0];
         this._gameImage = gameImage;
@@ -75,10 +73,6 @@ export default class Game {
         return this._thunderstoreUrl;
     }
 
-    get exclusionsUrl(): string {
-        return this._exclusionsUrl;
-    }
-
     get storePlatformMetadata(): StorePlatformMetadata[] {
         return this._storePlatformMetadata;
     }